Restructuring of a company is a process of collective actions in the sphere of capital, management (organizational), or on the asset side of the company, aimed at increasing efficiency, optimizing the use of the company’s resources, or improving the position of the entity in the competitive market. The procedure aimed at avoiding bankruptcy involves, among other things, finding the causes of the company’s economic crisis, their elimination, improving relations with creditors or contractors. There is also the possibility of improving liquidity in the future as a result of obtaining additional sources of financing. Taking advantage of the above aspects of company restructuring is possible as a result of four restructuring procedures. These procedures are regulated by the Restructuring Law, and thanks to them the debtor can gain, among other things, protection from bailiff enforcement.The so-called Shield 4.0 introduced a tool that has become very popular among Polish companies and is used not only by hotels and restaurants, but also industrial, clothing, transportation companies, etc. It is a simplified restructuring. It is a temporary solution, since the legislator has stipulated that the announcement of the opening of restructuring proceedings can be made no later than June 30, 2021, however, there are already voices to leave this tool in this or slightly modified form permanently in the Polish legal order, because the existing solutions for restructuring companies (proceedings for approval of an arrangement, accelerated arrangement proceedings, arrangement proceedings and sanitation) are complicated, time-consuming and expensive procedures, and consequently inefficient. Guarantees of creditors’ rights are there, however, at the same time they cause restructuring to fail. Simplified restructuring was intended to be cheap, efficient and fast.